The versatile Brazilian full-back had to be substituted in the first half of Barca's home league match against Rayo Vallecano after stretching to control a ball.
Adriano is set to miss the Champions League quarter-final against Paris Saint-Germain which takes place in the first two weeks of April.
The injury-prone Adriano will be sidelined along with captain Carles Puyol, who had knee surgery last week, leaving Barca short of options in defence going into the critical phase of the season.
'Andy Robertson has a decision to make as a player, where you either roll your sleeves up and give someone great competition or you accept decisions and say that your time is done.' Alan Shearer on the conundrum facing Arne Slot's Liverpool
'He’s better than anything Manchester United or Chelsea have got up front, so the answer is simple: it’s inevitable that he’ll be linked with massive football clubs because he’s a really good talent.' Alan Shearer on the next superstar on the move
